Simultaneous Nadir Overpasses (SNOs) between NOAA-21 and TERRA
TLE Epoch: 2023 1 20.  Predictions up to the next  14.0 days:

     Date     Time(NOAA-21) NOAA-21 Lat/Lon Date Time(TERRA) TERRA Lat/Lon    Distance(km)  Time Diff(sec)
 01/20/2023   15:57:05   ( -70.31, 116.81) 01/20/2023   15:57:47  ( -70.32, 116.74)    3.18                42
 01/20/2023   16:47:49   (  70.19, -75.70) 01/20/2023   16:47:11  (  70.21, -75.77)    3.22                38
 01/23/2023   04:50:59   ( -70.37, -76.76) 01/23/2023   04:51:46  ( -70.35, -76.75)    1.87                47
 01/23/2023   05:41:43   (  70.25,  90.72) 01/23/2023   05:41:10  (  70.23,  90.74)    2.64                33
 01/25/2023   17:44:53   ( -70.38,  89.73) 01/25/2023   17:45:45  ( -70.39,  89.79)    2.27                52
 01/25/2023   18:35:37   (  70.27,-102.79) 01/25/2023   18:35:09  (  70.26,-102.74)    2.26                28
 01/28/2023   06:38:46   ( -70.36,-103.71) 01/28/2023   06:39:44  ( -70.38,-103.73)    3.13                58
 01/28/2023   07:29:30   (  70.25,  63.77) 01/28/2023   07:29:08  (  70.25,  63.73)    1.41                22
 01/28/2023   08:19:55   ( -69.26,-127.45) 01/28/2023   08:18:49  ( -69.30,-129.91)   96.83                66
 01/30/2023   19:32:40   ( -70.39,  62.75) 01/30/2023   19:33:42  ( -70.39,  62.76)    0.58                62
 01/30/2023   20:23:24   (  70.29,-129.77) 01/30/2023   20:23:05  (  70.30,-129.70)    3.04                19
 01/30/2023   21:13:52   ( -69.45,  38.79) 01/30/2023   21:12:44  ( -69.47,  36.81)   77.58                68
 02/02/2023   08:26:33   ( -70.39,-130.72) 02/02/2023   08:27:39  ( -70.41,-130.72)    1.88                66
 02/02/2023   09:17:17   (  70.29,  36.75) 02/02/2023   09:17:03  (  70.26,  36.72)    3.40                14